Synthesis and ^1^8^3W NMR characterization ofα-and β-[SiW~9Ti~3O~4~0]^1^0- polyanions
LIU JINGFU;MENG LU;ZHAO WENYAN;LI JINCHANG;ZHAO BENLIANG
Acta Chimica Sinica . 1995, (1): 46 -49 .